Pressure-regulator



x 'WQPOSTERQ Pressure-Regulator.

No. 226,394. Patented April 13,1880.

. UNITED STATES PATENT OFFICE.

WILLIAM FOSTER, OF BROOKLYN, NEW YORK.

PRESSURE-REGULATOR.

SPECIFICATION forming part of Letters Patent No. 226,394, dated April13, 1880.

Application filed October 30, 1878.

To all whom t may concern Be it known that 1, WILLIAM FOSTER, of thecity of Brooklyn, county of Kings, and State of New York, have inventeda new and useful Improvementin Pressure Regulators or Governors, ofwhich the following is a full, clear, and exact description.

-My invention is of great benefit and utility, and does away withdisadvantages which belong to the pressure regulators or governors inordinary use. V

My pressure regulator or governor, being elastic, has a larger range oftravel than the disk or piston of the governor commonly used. It alsorequires no lubrication of any kind, and therefore there is nopossibility of its not working, there being no corrosion or gum to makeit stick fast and render it unreliable and dangerous.

The advantages of the ball B over the plain or flat diaphragm commonlyused are, that there is no liability of cutting around the edges whenclamped between anges, as the flat diaphragm usually is secured. Thereis no possible chance of leakage between the anges, these bein gdispensed with altogether. The action of the ball B itself is entirelydif# ferent from the tlat diaphragm, and the whole device is muchsimpler and not so liable to get out of order.

For convenience I have shown my invention as connected to adirect-acting steam-pump; but it is applicable to all purposes forregulating pressure.

The drawing represents my device applied to a steam-pump.

My invention is described as follows: The pressure of air, water, orother liquid passes from the chamber A, or other proper receptacle,through the pipe or pressure-tube b, into the inside of a ball, B, ofrubber or other elastic substance, which ball is made spherical orelliptical in shape. The said ball B is confined in a hollow cylinder,O, of about the same diameter of hole as the outside of said ball B. Oneend of said cylinder C is curved to the circle of said ball B. This endof said cylinder C has a hole made in it of sufcient size to allow thepipe or tube b to pass through. The said tube bis provided with aflange, c,

which is passed through a small aperture made in the ball B. The ball Bis then made fast to the cylinder O by means of the nut d, or othersuitable means, so that there can be no escape of the air or water orother liquid from the ball B into the cylinder O.

A disk or piston, D, of metal or other suitable material, rests againstthe ball B, pressing said ball to about one-half its natural size. Thisdisk or piston D is connected with a lever, F, by means of the guide-rodE, that operates any snitably arranged steam valve. To said lever F isattached, by set-screw or other suitable means, a weight, H, that can beslid back and fort-h on said lever F, to give the desired pressure.rlhis lever F controls and operates the balanced steam-valve I, to whichit is attached by means of the arm c.

Any pressure acting on the inside of the ball in excess of the regulatedpressure ills out the ball B to its natural size, raising the lever'Fand weight H and closing the steamvalve.

I am aware of the patent of' N. O. Lock, dated November 22, 1870, No.109,526, and therefore lay no claim to the construction shown in thatinvention.

Vhat I claim, and desire to secure by Let ters Patent, is-

l. The ball B, inclosed in and secured to the cylinder O, andpressure-tube b, in combination with the disk or piston D and weightedlever F, connected with and operating a'stealnvalve, I, substantially asshown and described.

2. The combination, with the pump-cylinder L, air-chamber A, and benttube b, connected with the air-chamber and the cylinder O, and havingthe ange c and nut d, of the hollow perforated ball B, cylinder O,piston D, weighted lever F, arms`e c, and steam-valve I, substantiallyas described, and for the purpose set forth.`

In testimony that I claim the foregoing I have hereunto set my hand this28th day of October, 1878.

WILLIAM FOSTER.

In presence of- CHARLES G. 00E, LoUIsW. FRos'I.

